Wallpaper author:
Antoine Grelin
18 Aug 2026
Double Cluster in Perseus with HA (NGC 869 and NGC 884)
The Double Cluster in Perseus in RGB+HA to show the rich Hydrogen Alpha background.
Dataset from which the image was processed
Double Cluster in Perseus with HA (NGC 869 and NGC 884)
14 credit
- Type of target............................................................................................................................Globular Cluster
- Camera............................................................................................................................QHY600M
- Target coordinates............................................................................................................................RA 34.7408 Dec 57.1339
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................United States of America
- Transient event............................................................................................................................No
- Observed on............................................................................................................................31 Oct 2022 - 29 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Red | 60 | 50m | 50 |
| Green | 60 | 49m | 49 |
| Blue | 60 | 50m | 50 |
| Halpha | 600 | 18h40m | 112 |